New OSL dating of UK loess: indications of two phases of Late Glacial dust accretion in SE England and climate implications

Autor:	Kevin J. Northmore, Michèle L. Clarke, Jon E. Bouch, Antoni E. Milodowski, Melanie J. Leng
Rok vydání:	2007
Předmět:	geography geography.geographical_feature_category Cryoturbation Geochemistry Paleontology Sediment Arts and Humanities (miscellaneous) Loess Earth and Planetary Sciences (miscellaneous) Glacial period Ice sheet Sedimentology Accretion (geology) Geomorphology Geology Chronology
Zdroj:	Journal of Quaternary Science. 22:361-371
ISSN:	1099-1417 0267-8179
Popis:	Windblown dust deposits or loess, locally known in the UK as brickearth, blanket many parts of southern England outside the limits of the British and Irish Ice Sheet. The best-studied loess exposures occur in Kent, southeast England, where the deposits are believed to be Late Glacial in age. New sedimentological evidence is presented for phases of accretion with two distinct units, a calcareous brickearth exhibiting periglacial cryoturbation and a non-calcareous, massive brickearth. Optically stimulated luminescence (OSL) dating has been applied to chemically isolated modal quartz silts to derive a chronology for sediment accretion and to better understand the palaeoclimatic significance of these deposits.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7971f3fe674443b5fa35f5602fd7027b https://doi.org/10.1002/jqs.1061 Zobrazit plný text záznamu Plný text